WO2015040468A1

WO2015040468A1 - Stator for rotary electric machine

Info

Publication number: WO2015040468A1
Application number: PCT/IB2014/001851
Authority: WO
Inventors: Daisuke Kitada
Original assignee: Toyota Jidosha Kabushiki Kaisha
Priority date: 2013-09-20
Filing date: 2014-09-17
Publication date: 2015-03-26
Also published as: JP2015061465A; JP6160397B2

Abstract

A stator for a rotary electric machine includes a stator core, phase coils, a neutral line, a temperature sensor, and a cuff support. The phase coils wound around the stator core. The neutral line connects together one side end portion of each of the phase coil. The temperature sensor is provided on the neutral line, and is arranged with a space between the temperature sensor and an end surface of the stator core. The cuff support is arranged fixed to the end surface of the stator core. The cuff support is made of an insulator. The cuff support and the temperature sensor are fixed by an adhesive.

Description

STATOR FOR ROTARY ELECTRIC MACHINE BACKGROUND OF THE INVENTION 1 . Field of the Invention

[0001 ] The invention relates to a stator for a rotary electric machine. More particularly, the invention relates to a stator in which a temperature sensor is provided on a neutral line of a stator w inding. 2. Description of Related Art

[0002) When a rotary electric machine operates, the temperature of a winding wound around a stator rises, so a temperature sensor is provided in order to detect this rise in temperature. The temperature sensor may be provided on a neutral line of the stator winding.

[0003] Japanese Patent Application Publication No. 201 3- 1 2 1 1 83 ( JP

201 3- 1 21 1 83 A) describes a structure in which a temperature sensor provided on a neutral line of a stator winding of a rotary electric machine is able to be easily replaced when it fails. In the described structure, a tip end portion of the winding that is connected to the neutral line is made longer in the axial direction of the stator than connecting portions of the other windings, so the connection between the tip end portion of the winding and the neutral line is able to be undone easi ly. Also, the tip end portion of the winding that is connected to the neutral line is able to be easily disconnected even w hen is extended toward the outer peripheral side in the radial direction of the stator.

[0004] As art related to the invention, Japanese Patent Application Publ ication No. 2006-223058 (JP 2006-223058 A) describes a stator structure in which, in order to make up for insufficient rigidity of insulating paper that is inserted into a slot, a j ig that is referred to as a cuff support that matches the shape of the slot is inserted after the insulating paper is inserted into the slot, but before the coil is wound. This is done to prevent the coil from contacting an end surface of a stator core and becoming damaged, which may occur if the coil becomes twisted with strong force in the direction of the end surface of the stator core when the coil is wound in the slot, because the insulating paper has no rigidity.

SUMMARY OF THE INVENTION

[0005) The neutral l ine of the stator w inding connects the neutral line side end portion of each phase winding together by welding or the like, so the portion between welding connection points is like a cantilever and is not fixed. If a temperature sensor is provided on an unfixed neutral line, the temperature sensor is also unable to be stably fixed. For example, if external vibration or the like is received in this state, the neutral line may vibrate easily depending on the mass of the temperature sensor, and in some cases, sufficient vibration resistance strength may be unable to be ensured.

[0006] The invention thus provides a stator for a rotary electric machine capable of stably fixing a temperature sensor.

[0007) One aspect of the invention relates to a stator for a rotary electric machine includes a stator core, phase coils, a neutral line, a temperature sensor, and a cuff support.

The phase coils wound around the stator core. The neutral l ine connects together one side end portion of each of the phase coil. The temperature sensor is provided on the neutral line, and is arranged w ith a space betw een the temperature sensor and an end surface of the stator core. The cuff support is arranged fixed to the end surface of the stator core. The cuff support is made of an insulator. The cuff support and the temperature sensor are fixed by an adhesive.

[0008) In the stator according to the one aspect of the invention, the temperature sensor and the phase coil may be fixed together by the adhesive.

[0009) In the stator according to the one aspect of the invention, the temperature sensor and the end surface of the stator core may be fixed together by the adhesive.

[0010] In the stator according to the one aspect of the invention, the adhesive may accumulate in a portion defined by an upper surface of the cuff support and a side wall surface of the temperature sensor.

[0011 ] In the stator according to the one aspect of the invention, a portion of the temperature sensor may be covered by the adhesive.

[0012] In the stator according to the one aspect of the invention, an upper surface of the cuff support may be a positioning reference when connecting a neutral point side end portion of the phase coil to an end portion of the neutral line.

[0013] With the stator according to the one aspect of the invention, the temperature sensor is fixed to the cuff support by the adhesive, so the temperature sensor is able to be stably fixed. Also, as a result, the vibration resistance strength of the neutral line on which the temperature sensor is provided improves.

[0014[ Also, in the stator. the temperature sensor and the stator coil are fixed to each other by the adhesive, so the temperature sensor is able to be stably fixed.

[0015] Also, in the stator. the temperature sensor and the end surface of the stator core are fixed to each other by the adhesive, so the temperature sensor is able to be stably fixed.

(0016J Also, in the stator, the adhesive accumulates in a portion defined by the upper surface of the cuff support and the side wall surface of the temperature sensor, so the adhesive is inhibited from flowing to the outer peripheral side of the stator. and the temperature sensor is able to be stably fixed.

[0017] Also, in the stator, at least a portion of the temperature sensor is covered by the adhesiv e, so the temperature sensor is inhibited from being directly exposed to coolant for cooling the stator, or the like. As a result, detection error by the temperature sensor due to coolant is able to be inhibited.

[0018| Also, in the stator. the upper surface position of the cuff support serves as the height positioning reference w hen connecting the neutral l ine side end portion of the stator coi l to the end portion of the neutral line, so the connection of the neutral line is able to be performed.

BRIEF DESCRIPTION OF THE DRAW INGS

(001 J Features, adv antages, and technical and industrial significance of exemplary embodiments of the invention wi ll be described below with reference to the accompanying drawings, in which like numerals denote like elements, and wherein:

FIG. 1 is a block diagram of a rotary electric stator according to the invention;

FIG. 2 is a connection wiring diagram of various phase coils of the rotary electric machine stator according to the invention;

FIG. 3 is a view illustrating the relationship between a cuff support, a temperature sensor, and an adhesive portion, in the rotary electric machine stator according to the invention;

FIG. 4A is an exploded block diagram of the rotary electric machine stator according to the invention, which shows a stator core and slots;

FIG. 4B is an exploded block diagram of the rotary electric machine stator according to the invention, which shows two types of cuff supports with different length protective shape portions, arranged on the stator core, and the phase coils inserted;

FIG. 4C is an exploded block diagram of the rotary electric machine stator according to the invention, which shows the phase coils bent using the cuff supports;

FIG. 4D is an exploded block diagram of the rotary electric machine stator according to the invention, which shows a neutral line provided with a temperature sensor; and

FIG. 4E is an exploded block diagram of the rotary electric machine stator according to the invention, which shows the temperature sensor arranged on the cuff support with the long protective shape portion, and fixed thereto by an adhesive.

DETAILED DESCRIPTION OF EMBODIMENTS

[0020] Hereinafter, an example embodiment of the invention will be described in detail with reference to the accompanying drawings. Below, a distributed winding is given as a winding method of a three phase coil, but this is only an example for the purpose of description. The winding may also be a concentrated winding or the like as long as a neutral line is used Also, the neutral line is described as being formed by a first neutral line that connects a neutral line side end portion of a U-phase coil to a neutral line side end portion of a V-phase coil, and two second neutral lines that connect the neutral line side end portion of the U-phase coil to a neutral line side end portion of a W-phase coil, but this is only an example for the purpose of description. The connection method may be different than this as long as it connects together the neutral line side end portion of the U-phase coil, the neutral line side end portion of the V-phase, and the neutral line side end portion of the W-phase coil.

[0021 ] The dimensions, shapes, number of coils, and materials and the like are examples for the purpose of description, and may be modified as appropriate according to the specifications of the rotary electric machine stator. Hereinafter, like elements in the drawings w ill be denoted by like reference characters, and redundant descriptions will be omitted.

[0022] FIG. 1 is a block diagram of a rotary electric machine stator 10. This rotary electric machine stator 10 is a stator used in a three-phase synchronous rotary electric machine, in which various phase coils 1 are wound around a stator core 12 in a distributed w inding. End portions on one side of the phase coils 14 are connected to a drive circuit, and the end portions on the other side of the phase coils 14 are connected together by neutral lines 16 and 1 8 using a Y- wiring system. A temperature sensor 30 for detecting a coil temperature is provided in the neutral l ine 16. Here, the temperature sensor 30 is fixed to the stator core 1 2 by an adhesive portion 50 (see FIG. 3 ) so that it will not swing from vibration.

[0023] FIG. 1 show s an axial direction, a radial direction, and a circumferential direction of the rotary electric machine stator. The axial direction indicates the one end side and the other end side.

[0024] The stator core 1 2 is an annular-shaped magnetic part that includes a base portion on an outer peripheral side, a pl urality of teeth 60 that are arranged along in the circumferential direction on the inner peripheral side and that protrude in the radial direction, and a plurality of slots 62 that are air gaps that pass betw een adjacent teeth 60 in the axial direction. The teeth 60 and the slots 62 w i l l be described later with reference to FIG. 4A.

[0025] A plurality of annular-shaped magnetic thin plates that formed in a predetermined shape including the teeth 60 and the slots 62. w hich are laminated together. are used for the stator core 12. Electromagnetic steel plates may be used as the magnetic thin plates. Instead of a stacked body of magnetic thin plates, magnetic powder may also be integrally formed into a predetermined shape.

[0026] The phase coils 14 are stator coils that are wound around the stator core 12. The phase coils 14 formed by bending a conductor line that is covered with a suitable insulating coating in a predeteirnined shape, and arranging this extending between a plurality of slots 62 separated by predeteirnined slot intervals in the circumferential direction, by a distribution winding arranging method, so as to form a three-phase winding of the rotary electric machine stator.

[0027] A flat w ire having a rectangular sectional shape is used as the conductor line with the insulating coating that is used for the phase coils 14. Using this flat wire makes it possible to improve the coil space factor in the slots 62. Wire having a circular cross-section or an elliptical cross-section may also be used instead of the flat wire.

[0028] A segment coil formed by a plurality of conductor segments is used as the phase coils 14. The conductive segments are formed by bending a conductor line of a predetermined length into a predetermined shape as necessary. As the conductor segments, U-shaped conductor segments in which a single conductor line is formed in a U-shape beforehand, or V-shaped conductor segments in which a single conductor line is formed in a V-shape beforehand, may be used because the conductor segments are arranged extending between a plurality of slots 62 that are separated by predetermined slot intervals in the circumferential direction.

[0029] A case in w hich V-shaped conductor segments are used w i ll be described as an example. In this case, straight conductor portions that serve as both leg portions of the V shape are inserted one into each of two slots 62 that are separated by a predetermined slot interval in the circumferential direction, in the stator core 1 2. An apex portion of the V shape that connects these tw o leg portions together protrudes out toward one end side an axial direction of the stator core 1 2. and serves as a coil end portion on one end side. The two straight conductor portions corresponding to leg portions that are inserted into the two slots 62 protrude out toward the other end side in the axial direction of the stator core 1 2. so these are bent appropriately and the tip end portions thereof serve as connecting end portions. Similarly, the other conductor segments are also bent appropriately at the other end side in the axial direction of the stator core 12 such that connecting end portions are formed. The connecting end portions and the like serve as coil end portions on the other end side of the stator core 12. Thus, the phase coils 14 of a distribution winding are able to be formed by electrically connecting the connecting end portions of the plurality of conductor segments that form same-phase coils together in series by a suitable connecting method such as welding.

[0030] The neutral lines 16 and 18 are conductor lines that connect neutral line side end portions of the phase coils 14 together. The neutral line 16 is a neutral line that connects the neutral line side end portion of the U-phase coil to the neutral line side end portion of the W-phase coil. This neutral line 16 will be referred to as the first neutral line. The neutral line 18 is a neutral line that connects the neutral line side end portion of the U-phase coil to the neutral line side end portion of the V-phase coil. This neutral line 18 will be referred to as the second neutral line. The neutral lines 16 and 18 are conductor lines with the same insulating coating used on the phase coils 14. but are conductor lines that connect the neutral line side end portions of the phase coils 14 together.

[0031) When the phase coils 14 are distinguished from each other by phase, they will be referred to as a U-phase coil 14_Li. a V-phase coil

and a W-phase coil 14w. The U-phase coil 14u, the V-phase coil

and the W-phase coil 14w are each connected at an end portion on one side to a corresponding terminal 20 on a drive circuit side. The end portions on the other side are connected together by the neutral lines 16 and 18 using a Y-wiring system. The terminals 20 on the drive circuit side are phase output terminals of the drive circuit, so when these are distinguished from each other by phase, they will be referred to as terminal 20y. terminal

and terminal 20 .

[0032 J FIG.2 is a view of the wiring method of the U-phase coil 14_Li. the V-phase coil 14v, and the W-phase coil 14 . An end portion 14υτ on one side of the U-phase coil 14u is connected to the terminal 20n on the drive circuit side, and the end portion on the other side of the end portion 14y_T serves as a neutral line side end portion Hue that is connected to a U-phase side end portion 16u of one neutral line 16 and a U-phase side end portion 1 8u of the other neutral line 1 8. An end portion 14_VT on one side of the V-phase coil 14v is connected to the terminal 20v on the drive circuit side, and the end portion on the other side of the end portion 14ντ serves as a neutral line side end portion 14vc that is connected to a V-phase side end portion

of the neutral line 1 8. Also, an end portion on one side of the W-phase coil 14w is connected to the terminal 20w on the drive circuit side, and the end portion on the other side of the end portion 14WT serves as a neutral line side end portion 14_Wc that is connected to a W-phase side end portion 1 6w of the neutral line 16.

[0033) In this way, the neutral line side end portion 14_Lic of the U-phase coil 14_Li. the neutral line side end portion

of the V-phase coil 1 4_v, and the neutral line side end portion 14vvc of the W-phase coil 14_w. are connected together by the two neutral lines 16 and 1 8.

[0034] The connections betw een the end portion 1 4_UT on one side of the U-phase coil 14u. the end portion

on one side of the V-phase coil 14v, and the end portion 1 on one side of the W-phase coi l 1 4w are done by welding. Also, the connections between the neutral line side end portion 1 4_uc of the U-phase coil 14u. the neutral line side end portion 14vc of the V-phase coil 14 . and the neutral line side end portion 1 _WC of the W-phase coi l 1 4u are also done by w elding.

[0035] The temperature sensor 30 is a resin-molded thermistor, for example. The temperature sensor 30 is a resin package part that is arranged betw een the U-phase side end portion 1 6_Li and the W-phase side end portion 16 of the neutral line 1 6. The temperature sensor 30 passes through the neutral line 1 6 and has a thermistor 32 that is a temperature detecting element bui lt in. Tw o detecting terminals 34 from the thermistor 32 are draw n out to the outside, and connected to a control unit or the l ike of the rotary electric machine.

[0036] Returning again to FIG. 1 . cuff supports 40 are formed by a protective member, w hich is made of an insulator, such that the phase coi ls 14 that are w ound inserted into the slots 62 will not directly contact the end surface of the stator core 12 when they (i.e., the phase coils 14) are bent. These cuff supports 40 are arranged between the phase coils 14 and an end surface 1 3 of the stator core 1 2 in the axial direction.

[0037] Each cuff support 40 has a protective shape portion 42 that follows at least the outer peripheral side shape of the slot 62 (see FIG. 4B). For the cuff support 40, a long, thin flat plate part of suitable thickness, and that has a groove of the same planar shape as the planar shape of the air gap portion that passes through the slot 62, is able to be used as one part for each slot 62. The protective shape portion 42 is a shape of a portion that is contacted by the phase coils 14 that are inserted into these grooves, when the phase coils 14 are bent. The phase coils 14 are bent at the shoulders of the grooves, so a portion of a suitable width serves as the protective shape portion 42, starting from the shoulders of the grooves.

[0038] The cuff support described in JP 2006-223058 A is a protective j ig that is arranged on the end surface 1 3 of the stator core 12, with a protective shape portion matching the through-portion shape of the slot 62, before the phase coils 14 are bent, and removed when the bending is finished. In contrast, the cuff support 40 in FIG. 1 is arranged on the end surface 1 3 of the stator core 12. a protective shape portion matching the through-portion shape of the slot 62, before the phase coils 14 are bent, and is not removed even after the bending is finished, but is instead left in a state fixed sandwiched between the end surface 1 3 of the stator core 12 and the bent phase coils 1 4. Therefore, the cuff support 40 is a component part of the rotary electric machine stator.

|0039] This cuff support 40 that is used may be formed by molding resin material having suitable heat resistant properties and strength into a predetermined shape. The resin material used may be epoxy resin or polycarbonate resin or the like.

[0040| As show n in FIG. 4B. a standard cuff support 40s and a long cuff support

40L are used as the cuff support 40. The difference between the tw o is the length of the protective shape portion 42 in the radial direction when they are arranged on the end surface 1 3 of the stator core 1 2. The length in the radial direction of a protective shape portion 42L of the long cuff support 40|_ is longer than the length in the radial direction of a protective shape portion 42_s of the standard cuff support 40_s. In this way. the long cuff support 40|_ has the protecti ve shape portion 42_L that is longer than the standard type, so this will hereinafter be referred to as the "long protective shape portion 42_L ^". Here, the long cuff support 40|_ is used in the location where the temperature sensor 30 is arranged.

(0041 ] All of the cuff supports 40 may be the long cuff supports 40[_ . so they can all be one type. Also, the cuff support 40 does not need to be a separate part for each slot 62. but may instead be a single integrated part on the stator core 1 2. I f the cuff support 40 is an integrated part, the separate parts may be integrated together by welding or the l ike after being airanged.

(0042| FIG. 3 is a view of the manner in w hich the temperature sensor 30 and the long cuff support 40[_ are arranged. Here, only the W '-phase coi l 1 4w that is connected to the neutral l i ne 1 6 that passes through the temperature sensor 30 i s show n. The other phase coi ls 1 4 are not shown. Here, the slot 62 of the stator core 1 2 i s indicated by a broken l i ne, and the long cuff support 40|_ is arranged on the end surface 1 3 on the other end side of the stator core 1 2. w ith a groove 43 aligned w ith in a through-portion shape 63 of thi s slot 62.

(0043| Here, the position on the outermost peri pheral side in the radial di rection of the long cuff support 40|_ is denoted by L|_. and the position on the outermost peri pheral side i n the radial direction w hen the standai d cuff support 40_$ is arranged is denoted L_$. for comparison. The long protective shape portion 42_L of the long cuff support 40_(. is longer than the protective shape portion 42$ of the standard cuff support 40_$ by < L_L - L = AL in the radial di rection. AL is set such that the position of a tip end portion on the outer peripheral side in the radial d i rect ion of the long cuff support 40i_ extends into a gap betw een a lower surface 36 of the temperat ure sensor 30 and the end surface 1 3 of the stator core 1 2. Also, a thickness t of the long protective shape portion 42_L of the long cuff support 40_L need only be equal to or greater than the size of the gap between the low er surface 36 of the temperature sensor 30 provided on the neutral l ine 1 6 and the end surface 1 3 of the stator core 1 2.

|0044) As a result, the gap betw een the temperature sensor 30 provided on the neutral line 16 and the end surface 1 3 of the stator core 12 is eliminated, so the lower surface 36 of the temperature sensor 30 is able to be supported by an upper surface 41 of the long cuff support 40L.

[0045J By dripping adhesive into a portion defined by the upper surface 41 of the long protective shape portion 42L of the long cuff support 40i_ and a side wall surface 38 of the temperature sensor 30, the adhesive will accumulate and be inhibited from flow ing out to the outer peripheral side. Therefore, this defined portion forms an adhesive accumulating portion.

[0046] An adhesive portion 50 is formed by dripping adhesive into the adhesive accumulating portion and letting it harden. As a result, the temperature sensor 30 and the long cuff support 40L are firmly fixed by the hardened adhesive. Here, the long cuff support 40|_ is fixed to the stator core 1 2, so the temperature sensor 30 is fixed by the adhesive to the stator core 12 via the long cuff support 40L- A resin having suitable heat resistant properties may be used for the adhesive. For example, epoxy resin or the l ike may be used.

[0047] The adhesive accumulates between the temperature sensor 30 and the W-phase coi l 14_νν by the action of the adhesive accumulating portion, as shown in FIG. 3. Therefore, the temperature sensor 30 and the W-phase coil 14_w that is a stator coil are fixed together by the adhesive.

[0048] Even if a gap remains between the temperature sensor 30 and the long cuff support 40t_. the adhesive wi ll fil l in this gap and harden, so the temperature sensor 30 wi ll be firmly fixed to the long cuff support 40|_. Also, even if the adhesive runs into a space between the low er surface of the temperature sensor 30 and the end surface 1 3 of the stator core 1 2 through this gap. it will harden, forming an adhesive portion 5 1 . so the temperature sensor 30 wi ll be firmly fixed to the end surface 1 3 of the stator core 1 2.

[0049] In this way. with the adhesive portions 50 and 5 1 . at least a portion of the temperature sensor 30 is covered by adhesive, so the temperature sensor 30 is inhibited from being exposed to coolant for cooling the stator, or the like, for example. As a result, detection error by the temperature sensor 30 that may occur due to coolant dripping down and contacting the temperature sensor 30 is able to be inhibited.

(0050) Also, the lower surface 36 of the temperature sensor 30 is supported by the upper surface of the long cuff support 40i_, so the height position of a W-phase side end portion 16w of the neutral line 16 that passes through the temperature sensor 30 is stable. In FIG. 3. the height position of the W-phase side end portion 16w of the neutral line 16 is denoted as H. based on the upper surface 41 of the long cuff support 40i_. By aligning this height position H with the height position of the neutral line side end portion 14_wc of the W-phase coil 14 , the welding positions of the W-phase side end portion 16w of the neutral line 16 and the neutral line side end portion 14wc of the W-phase coil 14w are aligned, which facilitates welding. In this w ay. the long protective shape portion 42L of the long cuff support 40i_ is a positioning reference when connecting the neutral point side end portion of each phase coi l to the end portion of the neutral line.

[0051 J This structure ill now be described in further detail with reference to FIG. 3. FIG. 3 is an exploded view illustrating the steps when assembling the rotary electric machine stator 10. FIG. 4A is a view show ing the relationship betw een the slots 62 and the teeth 60 of the stator core 1 2. As shown here, the teeth 60 are a plurality of protruding portions that protrude out in the radial direction on the inner peripheral side of the stator core 1 2. and are arranged in the circumferential direction. The slots 62 are air gaps that extend through in the axial direction, between adjacent teeth 60. The phase coils 1 4 are inserted into the slots 62 and wound around the teeth 60.

(0052] FIG. 4B is a view show ing two types of cuff support 40. i .e. , the standard cuff supports 40s. and the long cuff supports 40|_, arranged on the stator core 1 2. with the U-phase coil 14 the V-phase coil 14v. and the W-phase coil 1 4 inserted. The length in the radial direction of the long protective shape portion 42L of the long cuff supports 40L is longer than the length in the radial direction of the protective shape portion 42_$ of the standard cuff supports 40s by AL (see FIG. 3 ).

[0053] FIG. 4C is a view of the U-phase coil 14 the V-phase coi l 14_v. and the W-phase coil 14w each bent, using the cuff supports 40_$ and 40_L. The U -phase coil 1 4y. the V-phase coil I 4_V. and the W-phase coil 1 are bent quite forceful ly toward the end surface 1 3 of the stator core 12, but the cuff supports 40s and 40L that are made of an insulator are arranged on the end surface 1 3 of the stator core 1 2. so the U-phase coil 14_{u ?} the V-phase coil

and the W-phase coil 14w will not directly contact the stator core 1 2.

[0054J FIG. 4D is a view of the neutral line 16 provided with the temperature sensor 30. The neutral line 1 8 is not shown in the drawings. FIG. 4E is a view of a state in which the lower surface 36 of the temperature sensor 30 is arranged on the long protective shape portion 42L of the long cuff support 40_L, the adhesive portion 50 is formed using adhesive (see FIG. 3), and the temperature sensor 30 is fixed to the stator core 1 2. Here, the U-phase side end portion 1 8_υ of the other neutral line 1 8 is show n connected by welding to the neutral line side end portion 14_Lic of the U-phase coil 14_Li and the U-phase side end portion 16u of the neutral line 1 6.

Claims

CLAIMS:

1. A stator for a rotary electric machine, the stator comprising:

a stator core;

phase coils wounding around the stator core;

a neutral line connecting together one side end portion of each of the phase coil; a temperature sensor provided on the neutral line, the temperature sensor arranged with a space between the temperature sensor and an end surface of the stator core; and a cuff support arranged fixed to the end surface of the stator core, the cuff support made of an insulator, the cuff support and the temperature sensor being fixed by an adhesive.

2. The stator according to claim 1 , wherein the temperature sensor and the phase coil are fixed together by the adhesive.

3. The stator according to claim 1 or 2, wherein

the temperature sensor and the end surface of the stator core are fixed together by the adhesive.

4. The stator according to claim 1 , wherein

the adhesive accumulates in a portion defined by an upper surface of the cuff support and a side wall surface of the temperature sensor.

5. The stator according to claim 1 , wherein a portion of the temperature sensor is covered by the adhesive.

6. The stator according to claim 1 , wherein an upper surface of the cuff support is a positioning reference when connecting a neutral point side end portion of the phase coil to an end portion of the neutral line.